The Cognitive Neuropsychiatry of Parkinson's Disease

Patrick McNamara

Abstract

Patients with Parkinson’s disease (PD) suffer most visibly with such motor deficits as tremor and rigidity and less obviously with a range of nonmotor symptoms, including autonomic dysfunction, mood disorders, and cognitive impairment. The neuropsychiatric disturbances of PD can be as disabling as its motor disorders, but they have only recently begun to be studied intensively by clinicians and scientists. This book examines the major neuropsychiatric syndromes of PD in detail and offers a cognitive theory that accounts for both their neurology and their phenomenology. It offers a review of kn ... More

Patients with Parkinson’s disease (PD) suffer most visibly with such motor deficits as tremor and rigidity and less obviously with a range of nonmotor symptoms, including autonomic dysfunction, mood disorders, and cognitive impairment. The neuropsychiatric disturbances of PD can be as disabling as its motor disorders, but they have only recently begun to be studied intensively by clinicians and scientists. This book examines the major neuropsychiatric syndromes of PD in detail and offers a cognitive theory that accounts for both their neurology and their phenomenology. It offers a review of knowledge of such neuropsychiatric manifestations of PD as cognitive deficits, personality changes, speech and language symptoms, sleep disorders, apathy, psychosis, and dementia. The author argues that the cognitive, mood, and personality symptoms of PD stem from the weakening or suppression of the agentic aspects of the self. The author’s study aims to arrive at a better understanding of the human mind and its breakdown patterns in patients with PD. The human mind-brain is an elaborate and complex structure patched together to produce what we call the self. When we observe the disruption of the self structure, which occurs with the various neuropsychiatric disorders associated with PD, the author argues, we get a glimpse into the inner workings of the most spectacular structure of the self: The agentic self, the self that acts.

End Matter

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